Questions about new addresses after the 2025 mergers

API & dataIs the API free?

Public lookups are free up to 100 requests per minute. Conversion needs an API key and is free up to 1.000 requests a month.

API & dataUnder which licence is the open data?

CC BY 4.0 — commercial use allowed; credit tinhthanhpho.com.

API & dataCan AI assistants use this data?

Yes. llms.txt, OpenAPI and the quick summary on every page let AI assistants cite it accurately with its source.

Frequently asked questions